(19)

(11)

EP 2 111 703 A1

(12)

(43) Date of publication: 28.10.2009 Bulletin 2009/44 (21) Application number: 08766306.8 (22) Date of filing: 13.06.2008

(51) International Patent Classification (IPC):  H04L 1/18(2006.01) (86) International application number: PCT/KR2008/003344 (87) International publication number: WO 2008/153353 (18.12.2008 Gazette 2008/51)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR (30) Priority: 13.06.2007 KR 20070057725 27.06.2007 US 946403 P 19.09.2007 KR 20070095308 29.10.2007 KR 20070108803 (71) Applicant: LG Electronics Inc. Seoul 150-721 (KR)

(72) Inventors: KANG, Seung Hyun Anyang-si Gyeonggi-do 431-080 (KR) YUN, Young Woo Anyang-si Gyeonggi-do 431-080 (KR) KIM, Ki Jun Anyang-si Gyeonggi-do 431-080 (KR) CHUNG, Jae Hoon Anyang-si Gyeonggi-do 431-080 (KR) YOON, Suk Hyon Anyang-si Gyeonggi-do 431-080 (KR) AHN, Joon Kui Anyang-si Gyeonggi-do 431-080 (KR) (74) Representative: Cabinet Plasseraud  52, rue de la Victoire 75440 Paris Cedex 09 75440 Paris Cedex 09 (FR)